Resolve symlinks when publishing from Git repos.

Resolve symlinks when publishing from Git repos.

"git ls-files" doesn't natively resolve symlinks, so this adds some
logic to do so manually. This brings the behavior of uploading from a
Git repo in line with non-Git uploading.

We still don't have a multipart parser in Dart, so we unfortunately have
to way of writing automated tests that the tarballs are created as
expected. I did verify this behavior locally, though.

Closes #1400

R=rnystrom@google.com

Committed: https://github.com/dart-lang/pub/commit/be164a815c5ffbc0bc79c80a904f6fbe17339a38

[Bob Nystrom, 2016-04-05 23:20:35]

lgtm

[nweiz, 2016-04-05 23:50:51]

Description was changed from

==========
Resolve symlinks when publishing from Git repos.

"git ls-files" doesn't natively resolve symlinks, so this adds some
logic to do so manually. This brings the behavior of uploading from a
Git repo in line with non-Git uploading.

We still don't have a multipart parser in Dart, so we unfortunately have
to way of writing automated tests that the tarballs are created as
expected. I did verify this behavior locally, though.

Closes #1400

R=rnystrom@google.com
==========

to

==========
Resolve symlinks when publishing from Git repos.

"git ls-files" doesn't natively resolve symlinks, so this adds some
logic to do so manually. This brings the behavior of uploading from a
Git repo in line with non-Git uploading.

We still don't have a multipart parser in Dart, so we unfortunately have
to way of writing automated tests that the tarballs are created as
expected. I did verify this behavior locally, though.

Closes #1400

R=rnystrom@google.com

Committed:
https://github.com/dart-lang/pub/commit/be164a815c5ffbc0bc79c80a904f6fbe17339a38
==========

[nweiz, 2016-04-05 23:50:52]

Committed patchset #1 (id:1) manually as
be164a815c5ffbc0bc79c80a904f6fbe17339a38 (presubmit successful).